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Sputnik 1
ImagesSoviet Union launches Sputnik 1, the world's first artificial satellite. -
Period: to
Space Exploration
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Sputnik 2
LaikaSoviet Union launched Sputnik 2 carrying a dog named Laika. Never returned. -
Explorer 1
PictureUnited States launches Explorer 1. -
NASA
BuildingN.A.S.A. is founded and formally organized. -
Yuri Gagarin
GagarinVostok 1 is launched by the Soviet Union carrying Yuri Gagarin, the first man in space. He orbits the Earth once. -
John Glenn
GlennJohn Glenn became the first American to orbit the Earth in Friendship 7. He orbits the Earth 3 times. -
Apollo 11
Apollo 11Apollo 11 astronauts Neil Armstrong and Buzz Aldrin land and walk on the moon. (First men to walk on the moon.) -
Skylab
SkylabSkylab, a US space station, is launched and used as a laboratory in earth orbit. -
Apollo/ Soyuz 19
PictureAmerican Apollo & Soviet Soyuz 19 are managed jointly for first international space flight mission. -
Sally Ride
1st woman Sally Ride becomes the first American woman in space. -
Challenger
ChallengerThe Challenger disintegrates less than one minute after launch, killing seven astronauts. -
Hubble Telescope
Hubble NASA's Hubble Telescope sent into space for exploration. -
John Glenn
2nd tripJohn Glenn, 77, becomes the oldest person to travel in space. -
Columbia STS-107
STS-107Space shuttle Columbia STS-107 disintegrated upon re-entering the Earth's atmosphere. The fiery explosion left a huge trail of debris, mostly over East Texas. -
Satellite Collision
Satellite Two communication satellites, one Russian and the other American collide in space. -
ISS
ISSInside the Space Station International Space Station is scheduled to be completed.